call or go online for a free supply and up to $160 in offers from authorized postage vendors. shipping's a hassle! weighing every box... actually, with flat rate boxes you don't need to weigh anything under 70 pounds. if it fits, it ships for a low flat rate. ok, but i ship all over the country. you can ship anywhere in the country for a low flat rate. ship international, too. yes, but i ship hundreds of things, in all sizes. great, because flat rate boxes come in four sizes. call and we'll send a free supply, plus up to $160 in offers. when you're ready to ship, we'll even pick them up for free, no matter how many you have. priority mail flat rate boxes only from the postal service. a simpler way to ship. call or go online now to get started.